Check the fuses, the panel is in the right galley undercounter storage. There is a blue cover you can remove by loosening a couple of screws. The cover has a diagram showing the fuse assignments.
Interestingly enough , this happened to me again a couple of weeks ago. A blown fuse was indeed the culprit this time. I have stowed extra 10 & 15 amp fuses onboard now so I won’t be caught again.